U0422

Invalid Data Received From Body Control Module

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–111 (est.)

Symptoms

Incorrect operation of electrical equipment (lighting, power windows)
The Check Engine light comes on
Problems with central locking
Dashboard malfunctions
Loss of communication with other modules

Causes

Problems with the CAN bus (open or short circuit)
Body Control Module (BCM) Malfunction
Bad contacts in BCM connectors
Software errors in BCM
Body Control Module Power Problems

How to Fix

Check the integrity of the CAN bus and connection
Inspect BCM connectors and wiring
Check body control module power and ground
Scan all modules for additional errors
Update or reflash BCM software

Related codes

U0421 U0423 U0121